Taipei Exchanges 2010 Doris manages to fulfill her long time desire to own a coffee shop In the first days of her business, she receives a lot of useless gifts brought by her friends As some customers get interested in buying some of them, she suggests a bartering system for her coffee house And so business starts going up as people come with different gifts to exchange Doris and customers become close to each other, and people decide to exchange not only gifts, but also personal stories from their lives